Gilbert Weather in September

What's the weather like in Gilbert (Arizona) in September 2025?

The climate in Gilbert during September can be summarized as very hot and dry.

September is in the fall / autumn in Gilbert and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a warm 37°C (98°F), whilst at night 20°C (68°F) is normal.

Gilbert weather averages (imperial / metric)
Daytime temperature 36.5°C 97.6°F
Nightly temperature 20.2°C 68.3°F
Average temperature 28.3°C 82.9°F
Daily sunshine 11.6 hrs
Avg rainfall 21 mm 0.8 ins
Rainy days 4 days
Sea temperature 21.6°C 70.9°F
Humidity 38%
Windspeed 12.6kph 8 mph

On average September is the 5th driest month of the year in Gilbert with around 21mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.6 hours of sunshine per day.

September temperatures in Gilbert

Gilbert average temperature in September

September rainfall

Gilbert average rain in September

September hourly sunshine

Gilbert average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Gilbert in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Gilbert weather stats

Gilbert weather statistics
Hottest month: July 40.5°C 104.9°F
Driest month: June 2mm 0.1ins
Sunniest month: June 14.4hrs
Coldest month: January 18.1°C 64.6°F
Wettest month: December 31mm 1.2ins
Map showing location of Gilbert (33.35283, -111.78903) Gilbert map pin © Google

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